煤矿用聚(氯)乙烯绝缘和聚氯乙烯护套电缆pvc insulatedpvc sheathed ephone cables for use in mines 产品用途:本产品适用于固定敷设在矿井作通信干线及分线箱与机连接线 scope of application:this product is fit for being laid in fixed placed in mines for the connection of communication trunk linesjunction boxephones. 执行标准 standards implemented: q/3210hl29-2003 型号、名称及使用范围 model desc-riptionsuse scope | 型 号model | 名 称desc-riptions | 使 用 范 围scope of application | | mhvv(huvv) | 煤矿用聚氯乙烯绝缘阻燃聚氯乙烯护套电缆pvc insulated fire retardant pvc sheathed ephone cables for use in mines | 矿井中一般场合general circumstances in mines | | mhvvr(huvvr) | 煤矿用聚氯乙烯绝缘阻燃聚氯乙烯护套软电缆pvc insulated fire retardant pvc sheathed soft ephone cables for use in mines | 矿井中分线盒、分线箱与机连接的场合where connection between junction boxephone is required in mines | | mhvv22(huvv22) | 煤矿用聚氯乙烯绝缘钢带铠装阻燃聚氯乙烯护套电缆pvc insulated steel tape armored fire retardant pvc sheathed ephone cables for use in mines | 矿井中承受一定冲击力和压力的场合where cables are under some impactpressure in the mine | | mhvv32(huvv32) | 煤矿用聚氯乙烯绝缘细圆钢丝铠装阻燃聚氯乙烯护套电缆pvc insulated fine round steel wire armored fire retardant pvc sheathed ephone cables for use in mines | 矿井中垂直敷设或承受较大拉力的场合vertically laid or laid where the cables are under big impactpull force in mines | | mhyv(huyv) | 煤矿用聚乙烯绝缘阻燃聚氯乙烯护套电缆pe insulated fire retardant pvc sheathed ephone cables for use in mines | 矿井中一般场合general circumstances in mines | | mhyvr(huyvr) | 煤矿用聚乙烯绝缘阻燃聚氯乙烯护套软电缆pe insulated fire retardant pvc sheathed soft ephone cables for use in mines | 矿井中一般场合general circumstances in mines | | mhyv22(huyv22) | 煤矿用聚乙烯绝缘钢带铠装阻燃聚氯乙烯护套电缆pe insulated steel tape armored fire retardant pvc sheathed ephone cables for use in mines | 矿井中承受一定冲击力和压力的场合where cables are under some impactpressure in the mine | | mhyv32(huyv32) | 煤矿用聚乙烯绝缘细圆钢丝铠装阻燃聚氯乙烯护套电缆pe insulated fine round steel wire armored fire retardant pvc sheathed ephone cables for use in mines | 矿井中垂直敷设或承受较大拉力的场合vertically laid or laid where the cables are under big impactpull force in mines | 电缆结构示意图iiiustration of cable structure  使用特性 service characteristics | 电缆*允许工作温度long-term service temperature of the cable conductor | -40℃-+50℃ | | 电缆敷设温度cable laying temperature | ≥-10℃ | | +25℃时环境相对湿度environment relative humidity at 25℃ | ≤95% | | 电缆的zui小弯曲半径minimun bending radius | mhvv mhyv mhvvr mhyvr 型电缆为电缆外径的15倍，其它型号为外径的20倍15 times of the cable outer diameter of mhvv mhyv mhvvr mhyvr,20times for the rest | 电缆规格 specifications | 型 号model | 规 格specifications | 导体结构（根数/直径）mm conductor structure(number/diameter) | | mhyvr mhvvr | 1x2 | 1/0.28镀锡铜线 +6/0.28镀锡钢线1/0.28 tinned copper wire +6/0.28 tinned steel wire | | mhvv22 mhvv32 mhyv22 mhyv32 | 2x2-100x2 | 1/0.5; 1/0.8 | | mhvv mhyv | 1x2-100x2 | 1/0.5; 1/0.8 | 电缆主要技术性能 major technical performances 1、 电缆导体直流电阻及固有衰减 dc resistance of the conductorintrinsic attenuation | 型 号model | +20℃导体直流电阻（≤ω/km）dc resistance of conductor at 20℃ | 固有衰减（800hz）≤db/km intrinsic attenuation | | mhvvr mhyvr | 260 | 4.63 | | mhvv22 mhvv32 mhyv22 mhyv32 mhvv mhyv | 95（0.5mm）; 36.7(0.8mm) | 1.32(0.5mm); 0.95(0.8mm) | 2、电缆其它技术性能 other major technical performances | 序 号serial number | 项 目items | 型 号model:mhvv mhvvr mhvv22 mhvv32 | 型 号model:mhyv mhyvr mhyv22 mhyv32 | | 1 | +20℃线芯导体直流电阻（ω/km）line core dc resistance at 20℃ | 见上表 see above table | | 2 | 电缆固有衰减（≤dm/km）cable intrinsic attenuation | 见上表 see above table | | 3 | +20℃绝缘电阻（≥mω·km）insulating resistance at 20℃ | 110 ; 40(mhvvr) | 3000 ; 110(mhyvr) | | 4 | 1min工频交流电压试验lmin power frequency alternating current pressure test | 芯-芯core - core芯-铠装层core - armoring | 1000v不击穿 1000v no breakdown | 1500v不击穿1500v no breakdown | | 5 | 工作电容（≤μf/km）service capacity | 0.12 | 0.06 | | 6 | 单根垂直燃烧试验single wire burning test | mt386 | | 7 | 成束燃烧试验group burning test | 符合gb/t 18380.3标准中b类成束试验要求conforms to gb/t18380.3 standard b types group test | |
